Acetylene-lamp.



PATENTED APR. -1 4 ,1 903.

H. LUCAS.

AGETYLENE LAMP.

APPLICATION FILED JULY 28, 1902.

2 SHEETS-SHEET lv 10 MODEL.

PATENTED APR. 14:, 1903.

H. LUCAS.

AGETYLENE LAMP.

APPLICATION rum) JULY 28, 1902.

Z SHEETS-SHEET 2.

H0 MODEL.

UNITED STATES HARRY LUCAS, OF BIRMINGHAM, ENGLAND.

ACETYLENE-LAM P.

SPECIFICATION forming part of Letters Patent No. 725,106,'dated April 14, 1903 Application filed July 28, 1902. Serial No. 117,308. (No model.)

To aZZ whom it may concern.-

Be it known that I, HARRY LUCAS, a subject of the King of Great Britain and Ireland, and a resident of Great King street, in the city of Birmingham, England, have invented certain new and useful Improvements .Relating to Acetylene-Lamps for Motor-Oars and other Vehicles, (for which I have filed an application in Great Britain, No. 777, bearing date January 10, 1902,) of which the following is a specification.

This invention relates to acetylene-lamps for motor-cars and other vehicles, my object being to construct such lamps convenient and effective in form, with means whereby the insertion of the generator within the lamp-body and its withdrawal therefrom automatically joints and disjoints the connectionbetween such generator and the gas-conduit or burner supply-pipe.

Referring to the three accompanying sheets of explanatory drawings, Figure 1 is a sec tional side elevation, and Fig. 2 an end elevation, of the lamp. The generator is not shown in Fig. 1. Fig. 3 is a sectional elevation, and Fig. 4 a sectional plan, of the generator, illustrating the means whereby its insertion within the lamp-body and its withdrawal therefrom automatically joints and disjoints the connection between itself and the gas-conduit or burner supply-pipe. Figs. 3 and 4 are shown to a larger scale than Figs. 1 and 2.

The same reference-letters in the different views indicate the same parts.

I make the body part a of the lamp of a conical form from one or more metal sheets shaped and united in any ordinary manner. The said conical body is mounted and se cured upon asaddle-base b, the sides of which are preferably tapered or inclined to correspond with the cone or taper of the body. In like manner I preferably taper the sides of the metal hood 0 on the upper part of the of combustion.

having an ordinary spring-catch or fastening device.

The front or larger end of the conical body is fitted with a reflector fin any ordinary manner, having an aperture g through its lower portion to admit the usual gas-supply pipe upon which the burners are mounted and a larger aperture it through its upper portion for the escape of the gaseous products The ordinary small perforations are also provided for the admission of air.

The hood has an internal chamber, as "i, for receiving the gaseous products of combustion aforesaid and opening directly to the atmosphere at the front end through the apertures j and 7c. The rear end of the chamber 2' also communicates with the atmosphere by way of the tubes or channels Z and m, which are made to pass adjacent to the exterior of the well-wife d, hereinbefore referred to, and into which the generator is placed for the purpose or enabling the current or currents of air to cool the said well when the generatoris in action.

The generator, which is placed within the tube d, hereinbefore referred to, is of a wellknown type and comprises an outer casing or vessel 01, containing the water necessary for the generation of the gas from the carbid contained within the two-part inner vessel 0.

A gas-conveying tube 19 is fixed to the bottom of the outer casing n and projects within a tube q, in attachment with the aforesaid inner vessel 0. The upper end of the tube, which terminates slightly below the top of the generator, is made to a conical or reduced form, as illustrated. The central portion of the bottom of the casing n is pierced or has an eye or aperture formed through it, and around such eye or aperture I fit a rubber or other jointing ring or washer 1", which when the generator is in its service position, as shown at Fig. 3, seats upon a hollow nipple s, fixed upon the interior of the base part of the lamp, and thus being tightly pressed by the weight of the generator upon the said nipple prevents escape of the'gas around-the exterior of the same.

Within a screw-plug part t, secured to the upper end of the aforesaid tubeq, I fit a valve or cook a, which when open, as in Fig. 3, permits the acetylene gas to pass, as indicated by the arrows, from the exterior to the interior of the upper part of the tube (1, down the tube p, through the nipple s, and finally by Way of a small supply pipe or conduit '11 to the gas-burners or to a gas bag or holder at the rear of the end of the conical body a, serving as the burner supply-reservoir.

On closing the cock u the outflow of gas is prevented and its generation thereby arrested, as the pressure forces back the water from the carbid into the outer casing in the wellknownmanner. By adjusting the extent of the opening of the cock the rate of gas generation can be regulated to suit requirements.

By the mere act of dropping a generator as aforesaid into positionwithin the well-tube d a gas-tight joint is automatically formed between its outlet end and the nipple 3, forming part of the conduit 1;, in permanent attachment with the lamp. Similarly the connection between the said parts is automatically disjointed on the withdrawal of the generator. The usual preliminary mechanical jOil'ifiDg and disjointing are thus dispensed wit Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In acetylene-lamps for motor-cars and other vehicles, the combination consisting of a vertically-disposed well-tube in permanent attachment with the lamp-body, a nipple at the bottom of the said well-tube, a gas-conduit in permanent connection with the said nipple, and a gas-generator having an outletaperture which automatically joints with the said nipple on the insertion of the generator within the said well-tube, and disjoints on the withdrawal of the same, the said joint being outside the water-chamber of the generator, substantially as described.

2. In acetylene-lamps for motor-cars and other vehicles, the combination consisting of a conical body part, a hood with air-tubes fitted therein, a well-tube inserted vertically through and permanently secured with the said body, a nipple at the bottom of the said well-tube, a gas-conduit in permanent connection with the said nipple, a gas-generator, and a jointing-ring interposed between the gas-outlet of the generator and the said nipple, substantially as described.

3. In acetylene-lam ps for motor-cars and other vehicles, the combination consisting of a conical body part, a hood with air-tubes fitted therein, a well-tube inserted vertically through and permanently secured with the said body, a nipple at the bottom of the said well-tube, a gas-conduit in permanent connection with the said nipple, a gas-generator, a jointing-ring interposed between the gasoutlet of the generator and the said nipple, and a gas-regulating cock fitted to the generator, substantially as described.

I. In acetylene-lamps for motor-cars and other vehicles, the combination consisting of a conical body part, hood and base parts secured to the said body and with sides tapered to correspond with cone of same, air-tubes fitted within the said hood, a well-tube inserted through and permanently secured with the body and projecting within the said hood and base parts, a nipple at the bottom of the said well-tube, a gas-conduit in permanent connection with the said nipple, a gas-generator, a jointing-ring interposed between the gas-outlet of the generator and the said nipple, a gas-regulating cock fitted to the generator, and a generator admission-aperture in the said hood part with a hinged lid and fastening device therefor, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

HARRY LUCAS. 

